CAIC: Colorado Avalanche Information Center

2017/12/29 - Wyoming - Commissary Ridge, Salt River Range

Published 2017/12/31 by Bob Comey - Forecaster, BTNFAC


Avalanche Details

  • Location: Commissary Ridge, Salt River Range
  • State: Wyoming
  • Date: 2017/12/29
  • Time: 12:00 AM (Estimated)
  • Summary Description: 5 snowmobilers caught, 2 partially buried, 1 buried and killed
  • Primary Activity: Snowmobiler
  • Primary Travel Mode: Snowmobile

Number

  • Caught: 5
  • Fully Buried: 1
  • Injured: 0
  • Killed: 1

Avalanche

  • Type: SS
  • Trigger: AM - Snowmobile
  • Trigger (subcode): --
  • Size - Relative to Path: R3
  • Size - Destructive Force: D2.5
  • Sliding Surface: --

Site

  • Slope Aspect: E
  • Site Elevation: 9760 ft
  • Slope Angle: --
  • Slope Characteristic: --

Accident Summary

PRELIMINARY: The second rider on the slope was side hilling when the slide released. That rider was buried for 8 to 10 minutes and was evacuated by a helicopter about 2.5 hours later. The rider later succumbed to injuries. Two other riders were partially buried but not injured. The slide failed on a buried layer of surface hoar and dug down through several inches of faceted snow to a hard crust that formed in late November. 

Media

Images